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rtspsrc: put all SDP attributes on caps

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Put the SDP attributes on the caps too so that they can be used by
depayloaders.

See #564437
This commit is contained in:
Luc Deschenaux 2009-08-03 17:21:44 +02:00 committed by Wim Taymans
parent dbf4d8a910
commit f96e900a64
1 changed files with 53 additions and 0 deletions
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53
gst/rtsp/gstrtspsrc.c
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@ -217,6 +217,10 @@ static void gst_rtspsrc_get_property (GObject * object, guint prop_id,
static void gst_rtspsrc_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static void gst_rtspsrc_sdp_attributes_to_caps (GArray * attributes,
GstCaps * caps);
static GstCaps *gst_rtspsrc_media_to_caps (gint pt, const GstSDPMedia * media);
static GstStateChangeReturn gst_rtspsrc_change_state (GstElement * element,
@ -786,6 +790,11 @@ gst_rtspsrc_create_stream (GstRTSPSrc * src, GstSDPMessage * sdp, gint idx)
/* convert caps */
stream->caps = gst_rtspsrc_media_to_caps (stream->pt, media);
GST_DEBUG ("mapping sdp session level attributes to caps");
gst_rtspsrc_sdp_attributes_to_caps (sdp->attributes, stream->caps);
GST_DEBUG ("mapping sdp media level attributes to caps");
gst_rtspsrc_sdp_attributes_to_caps (media->attributes, stream->caps);
if (stream->pt >= 96) {
/* If we have a dynamic payload type, see if we have a stream with the
* same payload number. If there is one, they are part of the same
@ -1001,6 +1010,50 @@ gst_rtspsrc_parse_rtpmap (const gchar * rtpmap, gint * payload, gchar ** name,
return TRUE;
}
/*
* Mapping SDP attributes to caps
*
* prepend 'a-' to IANA registered sdp attributes names
* (ie: not prefixed with 'x-') in order to avoid
* collision with gstreamer standard caps properties names
*/
static void
gst_rtspsrc_sdp_attributes_to_caps (GArray * attributes, GstCaps * caps)
{
if (attributes->len > 0) {
GstStructure *s;
guint i;
s = gst_caps_get_structure (caps, 0);
for (i = 0; i < attributes->len; i++) {
GstSDPAttribute *attr = &g_array_index (attributes, GstSDPAttribute, i);
gchar *tofree, *key;
key = attr->key;
/* skip some of the attribute we already handle */
if (!strcmp (key, "fmtp"))
continue;
if (!strcmp (key, "rtpmap"))
continue;
if (!strcmp (key, "control"))
continue;
if (!strcmp (key, "range"))
continue;
if (!g_str_has_prefix (key, "x-"))
tofree = key = g_strdup_printf ("a-%s", key);
else
tofree = NULL;
GST_DEBUG ("adding caps: %s=%s", key, attr->value);
gst_structure_set (s, key, G_TYPE_STRING, attr->value, NULL);
g_free (tofree);
}
}
}
/*
* Mapping of caps to and from SDP fields:
*